Explain the distinction between a node and an internode
What will be an ideal response?
A node is a place on a stem where leaves arise. AN internode is the region on a stem between the nodes and bears no leaves.
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A cell releasing waste into the extracellular environment would be an example of which of the following?
a. phagocytosis b. pinocytosis c. receptor-mediated endocytosis d. exocytosis
Which scientist(s) discovered the basis for the base-pair rule, which states that the amounts of thymine and adenine are
always equal in all DNA molecules, as are the amounts of cytosine and guanine?
a. Watson and Crick b. Beadles c. Chargaff d. Franklin e. Pauling
The universal regulatory mechanism in eukaryotes for controlling gene expression includes
A. control of the processing of mRNA after it is transcribed from DNA but before it leaves the nucleus, and control of the rate it leaves the nucleus. B. control of the genes transcribed and the rate they are transcribed. C. control of mRNA in the cytoplasm after it leaves the nucleus, including changes to mRNA before translation begins. D. control of polypeptides after they have been synthesized but before they are functional. E. All of these mechanisms are used; there is no single universal mechanism.
FAD becomes oxidized when it accepts hydrogen atoms and their electrons
__________________ Indicate whether the statement is true or false.